Viscosity for Mac

Name: Viscosity
Rating: 4 (4 reviews)
Author: Viscosity VPN

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Viscosity Analysis

AI Assisted Content · June 11, 2026

Not written by CNET Staff.

Viscosity is a robust VPN client designed for macOS users, providing a user-friendly interface for managing OpenVPN connections. It offers features such as customizable configurations, support for multiple VPN connections, and advanced networking options. With Viscosity, users can easily create and manage their VPN profiles, ensuring secure and private internet access.

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Trial version

4.2

The software includes functionalities like DNS leak protection, automatic reconnection, and a built-in log viewer for troubleshooting. It is compatible with various versions of macOS and supports both IPv4 and IPv6 protocols. Viscosity also allows users to import and export configurations seamlessly, making it a flexible choice for those looking to enhance their online security.

Viscosity for Mac

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Full Specifications

GENERAL

Release: August 14, 2020

Latest update: June 11, 2026

Version: 1.8.6

OPERATING SYSTEMS

Platform: Mac

Operating System: Mac OS X

Additional Requirements

macOS Catalina
macOS Mojave
macOS High Sierra
macOS Sierra

POPULARITY

Total Downloads: 6,055

Downloads Last Week: 0

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Last Updated

User Reviews

4/5

4 User Votes

Viscosity version 1.4 is not working, use version 1.3.5
tommyvoyJuly 26, 2012
Pros
Version 1.3.5 works great
Cons
Do not install version 1.4 yet, it is still in beta stage and is not working without some adjustments.
Summary
 Updated on Jul 26, 2012I was using Viscosity on my Mac for 2 years and it is a good product.
it works when all else fails
jadek2210May 28, 2011
Pros
Works great with my OpenVPN server running as VM on Win7 Easy to install OpenVPN client config file & if needed, edit IP address of connection
Cons
not free, but works when I couldn't get the recommended free Mac OpenVPN client to do so
Summary
works; it's worth the price
Works great and practically free.
DavidHimselfJuly 4, 2010
Pros
It works with PKCS12 keys. Installs like a normal Mac app.
Cons
None so far.
Summary
If you need to connect via OpenVPN and that is set up to use PKCS12 keys, you have three options: 1. Get plain the OpenVPN for Mac software and run it from the command line; 2. Get Tunnelblick; 3. Get Viscosity. The first option takes some work. I couldn't even find the Mac version on the OpenVPN site. The link takes you to a page that says you can download it, but it isn't there. Their suggestion is to use option 2. The second option takes some work. PKCS12 doesn't work with the latest release. The third option is easy. Download and install. Eventually you have to pay for it, but if $9 is too much for you, what are you doing with a Mac?
Stable, quick, & cheap
T.G. McLeanJuly 25, 2008
Pros
Cons
Summary
This review was originally posted on VersionTracker.com. Stable app. Speed is as quick as if not quicker than Apple's built-in VPN option (which has proven necessary for me running an enterprise server where both Windoze users and Macs are logging in, given that Windoze [XP] still cannot do VPN L2TP (or PPTP!) out of the box reliably -- can't speak for Vista). Price ($10 shareware, forthcoming) reasonable. GUI nice. Option for config. tweaks good. Overall a good product.

Developer’s Description

By Viscosity VPN

Access blocked sites and protect your online privacy easily.

Viscosity is an OpenVPN client for Mac, providing a rich Cocoa graphical user interface for creating, editing, and controlling VPN connections. Viscosity provides a complete OpenVPN solution for Leopard (Mac OS 10.5) and does not require any additional downloads or software. Viscosity allows connections to be completely configured through a GUI, without any need to know how to use the command-line or OpenVPN's configuration file syntax. Advanced users still have full manual control over configuration options if desired. As well as connection configuration, Viscosity also provides a global menu for quick connection/disconnection, as well as a details window containing connection information and traffic statistics.

Viscosity for Mac

Viscosity Analysis

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User Reviews

Viscosity version 1.4 is not working, use version 1.3.5

it works when all else fails

Works great and practically free.

Stable, quick, & cheap

Developer’s Description